These earrings use four round silver bezels, all 8mm that are filled with red and white marbled polymer clay and then sealed in resin.  The earrings use silver-plated fishhook earwires and are 2.25" long.  
 
All metal used is hypoallergenic, nickel-free, and is sterling silver, silver or gold-plated, or stainless steel unless noted otherwise. Every item is handcrafted, custom-made, nothing mass-produced.